Dumb and Dumber is a 1994 American comedy film directed by Peter Farrelly, who co-wrote the screenplay with Bobby Farrelly and Bennett Yellin. Starring Jim Carrey and Jeff Daniels, it tells the story of Lloyd Christmas (Carrey) and Harry Dunne (Daniels), two dumb but well-meaning friends from Providence, Rhode Island, who set out on a cross-country trip to Aspen, Colorado, to return a briefcase full of money to its owner, thinking it was abandoned as a mistake though it was actually left as ransom money. Lauren Holly, Karen Duffy, Mike Starr, Charles Rocket, and Teri Garr play supporting roles.
Imbecilic best friends Lloyd Christmas (Jim Carrey) and Harry Dunne (Jeff Daniels) stumble across a suitcase full of money left behind in Harry's car by Mary Swanson (Lauren Holly), who was on her way to the airport. The pair decide to go to Aspen, Colo., to return the money, unaware that it is connected to a kidnapping. As Harry and Lloyd -- who has fallen in love with Mary -- are pursued across the country by hired killers and police, they find both their friendship and their brains tested.
Seeking vengeance when his partner (OJ Simpson) is shot full of holes by drug dealers, Lt. Frank Drebin searches for the Mister Big behind it all.
Spenser (Mark Wahlberg) -- an ex-cop better known for making trouble than solving it -- just got out of prison and is leaving Boston for good. But first he gets roped into helping his old boxing coach and mentor, Henry (Alan Arkin), with a promising amateur.
Hyperactive mayhem results when a mild-manned banker discovers an ancient mask that transforms him into a zany prankster with superhuman powers in this special-effects-intensive comedy.